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Z51F6412
Product Specification
PS030302-0212
P R E L I M I N A R Y
93
11.6.3 Register Map
Table 11-12 Register Map
Name
Address
Dir
Default
Description
BUZDR
8FH
R/W
FFH
Buzzer Data Register
BUZCR
9FH
R/W
00H
Buzzer Control Register
11.6.4 Buzzer Driver Register description
Buzzer Driver consists of Buzzer Data Register (BUZDR), Buzzer Control Register (BUZCR).
11.6.5 Register description for Buzzer Driver
BUZDR (Buzzer Data Register) : 8FH
7
6
5
4
3
2
1
0
BUZDR7
BUZDR6
BUZDR5
BUZDR4
BUZDR3
BUZDR2
BUZDR1
BUZDR0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value : FFH
BUZDR[7:0]
This bits control the Buzzer frequency
Its resolution is 00H ~ FFH
BUZCR (Buzzer Control Register) : 9FH
7
6
5
4
3
2
1
0
-
-
-
-
-
BUCK1
BUCK0
BUZEN
-
-
-
-
-
R/W
R/W
R/W
Initial value : 00H
BUCK[1:0]
Buzzer Driver Source Clock Selection
BUCK1 BUCK0 Source
Clock
0 0 fx/32
0 1 fx/64
1 0 fx/128
1 1 fx/256
BUZEN
Buzzer Driver Operation Control
0
Buzzer Driver disable
1
Buzzer Driver enable
Note) fx: Main system clock oscillation frequency